Stone Conrad Hallquist (April 8, 1902June 1, 1981) was an American football running back, who played for the Milwaukee Badgers in the National Football League.
Hallquist was born in Söderholm, Sweden. He went to South Division High School and Middlebury College. He played 9 regular season games over 1 season, in 1926.
He died in Sun City, Arizona.